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Created February 27, 2017 20:15
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eh.highlighter.unlimited.js
// ==UserScript==
// @name E-Hentai Highlighter (Unlimited version)
// @namespace http://userscripts.org/users/106844
// @description Highlighter for E-Hentai by etc. Edited for unlimited number of tags
// @include http://e-hentai.org/*
// @include https://e-hentai.org/*
// @include http://g.e-hentai.org/*
// @include https://g.e-hentai.org/*
// @include http://exhentai.org/*
// @include https://exhentai.org/*
// @grant GM_getValue
// @grant GM_setValue
// @version 0.1
// ==/UserScript==
// -------------------- DEFAULTS -------------------
var defaults = {
defaultColor : '#ec7e7e' ,
exColor : '#ed6464' ,
highlighterEnabled : false ,
filterEnabled : false ,
opacityEnabled : false ,
opacity : 0.1 ,
showTags : true ,
highlightTags : true ,
reorderGalleries : true ,
hideRatedGalleries : false ,
showHideOption : true ,
smartForegrounds : false
};
var apiurl = "https://e-hentai.org/api.php";
var apimax = 25;
// -------------------- /DEFAULTS -------------------
var EHH = {
init: function() {
EHH.metadatas=[];
EHH.galleryTagsHashtable = {};
EHH.augmentJS();
EHH.numberOfRequestSent=0;
EHH.numberOfRequestReceived=0;
// settings
EHH.settings = { };
for (var key in defaults)
EHH.settings[key] = Utils.load(key, defaults[key]);
EHH.dontWalk = false;
EHH.onPanda = document.URL.indexOf('e-hentai') == -1;
EHH.defaultColor = EHH.settings[EHH.onPanda ? 'exColor' : 'defaultColor'];
EHH.thumbnails = document.querySelector('.itg .id1') !== null;
EHH.gallery = document.querySelector('#taglist') !== null;
// User data
Utils.migrateSettings();
EHH.keywords = Utils.load('keywords',[ ]);
EHH.filters = Utils.load('filters',[ ]);
EHH.addMenuItems();
EHH.updateMenu();
// Colors
var colors =
EHH.onPanda ? { toggle: 'lightblue', toggleHover: 'lightcyan', disable: 'lightgreen',
disableHover: 'springgreen', enable: 'salmon', enableHover: 'lightsalmon',
row1: '#363940', row2: '#4F535B' }
: { toggle: 'slateblue', toggleHover: 'skyblue', disable: 'forestgreen',
disableHover: 'mediumseagreen', enable: 'indianred', enableHover: 'darkred',
row1: '#F2F0E4', row2: '#EDEBDF' };
var format = function(text) { return text.replace(/%(\w+)/g,function(x) { return colors[x.slice(1)]; }); };
// Permanent style
var style = document.createElement('style');
style.innerHTML = format(
// popup (general)
'#e-HentaiPopup {' +
'position: fixed; top: 0; right: 0; padding: 3px; border-radius: 0 !important;' +
'border: 1px black solid; z-index: 10; margin: 0 !important; min-width: 0 !important; width: auto !important;' +
'}' +
'#e-HentaiPopup:not(:hover) *:not(:first-child) { display: none; }' +
'#e-HentaiPopup * {' +
'font-family: Verdana, Tahoma, Georgia, Dejavu, "Times New Roman", Serif;' +
'font-size: 10px;' +
'} #e-Header { text-align: center; position: relative; }' +
'[mode="default"] [mode="settings"], [mode="settings"] [mode="default"] { display: none; }' +
'#e-ToggleMode {' +
'cursor: pointer; color: %toggle !important; font-weight: bold;' +
'position: absolute; right: 5px; border-bottom: 1px dotted;' +
'}' +
'#e-ToggleMode:hover { color: %toggleHover !important; }' +
'#e-HentaiPopup div[mode] { width: 350px; text-align: left; }' +
// user menu
'#hideRatedLabel { text-decoration: underline; cursor: pointer; display: none; }' +
'#hideRatedLabel.visible { display: inline; }' +
'#hideRatedLabel.active { color: red; font-weight: bold; }' +
// popup (default view)
'#e-HentaiPopup td:nth-child(2) { text-align: right; }' +
'#e-HentaiPopup td:nth-child(2) a, #e-HentaiPopup tr:last-child a {' +
'cursor: pointer; font-weight: bold; border-bottom: 1px dotted;' +
'}' +
'#e-HentaiPopup .e-Disable { color: %disable; }' +
'#e-HentaiPopup .e-Disable:hover { color: %disableHover; }' +
'#e-HentaiPopup .e-Enable { color: %enable; }' +
'#e-HentaiPopup .e-Enable:hover { color: %enableHover; }' +
'#e-HentaiPopup tr:last-child a:hover { color: black; }' +
'#e-HentaiPopup td > span { margin-right: 5px; float: right; }' +
'#e-HentaiPopup table { width: 100%; }' +
'#e-HentaiPopup textarea { width: 100%; height: 200px; box-sizing: border-box; -moz-box-sizing: border-box; }' +
// popup (settings view)
'#e-HentaiPopup label { display: block; padding: 2px; }' +
'#e-HentaiPopup input[type="checkbox"] { margin: 0 5px 0 0; float: left; }' +
'[name="slider"]:not([visible="true"]), [name="slider"]:not([visible="true"]) + span { display: none; }' +
'[name="slider"] { margin-left: 20px; width: 250px; }' +
'[name="slider"] + span { position: relative; bottom: 7px; }' +
'#e-HentaiPopup [mode="settings"] { padding: 10px; box-sizing: border-box; -moz-box-sizing: border-box; }' +
'#e-Buttons { text-align: center; padding-top: 20px; }' +
'.e-Button {' +
'min-width: 100px; height: 25px; line-height: 25px; text-align: center; color: white;' +
'background: black; display: inline-block; cursor: pointer; margin-right: 10px;' +
'}' +
'.e-Button:hover { text-decoration: underline; }' +
'.e-Button + input { display: none; }' +
'#e-PickerLabel { margin-top: 10px; }' +
'#e-ColorPicker + div { width: 30px; height: 18px; display: inline-block; margin-left: 10px; vertical-align: top; }' +
// highlight/filter style
'.e-Highlighted b { font-weight: inherit; }' +
'.e-Highlighted:not(.e-Transparent), [id^="ta_"][style*="background"] { color: black !important; }' +
'.e-white:not(.e-Transparent) { color: white !important; }' +
'.e-black:not(.e-Transparent) { color: black !important; }' +
'.e-Highlighted:not(.e-Transparent) a { color: inherit !important; }' +
'.e-Highlighted b { font-weight: bold !important; font-size: 115%; text-decoration: underline; }' +
// tag divs
'.e-Tags { position: absolute; top: 0px; left: 0px; text-align: left; color: black; ' +
'margin-left: 1px; text-shadow: -1px -1px 0 #fff, 1px -1px 0 #fff, -1px 1px 0 #fff, 1px 1px 0 #fff;' +
'font-weight: bold; font-family: "Segoe UI"; font-size: 12px; line-height: 11px;' +
'}' +
'.e-Tags > div { padding: 3px; max-width: 70px; overflow: hidden; transition: max-width .5s linear;' +
'white-space: nowrap; }' +
'.id3:hover .e-Tags > div { max-width: 200px !important; }' +
'.itg, #pp { display: flex; flex-flow: row wrap; }' +
'.id1 { float: none !important; }'
);
document.head.appendChild(style);
// Mutable style
EHH.opaqueFilterCSS = document.createElement('style');
EHH.opaqueFilterCSS.id = 'e-OpaqueFilter';
EHH.opaqueFilterCSSMask = format('{0}#toppane ~ .c, .e-Filtered { display: none !important; }\n' +
'{0}tr.color1 { background: %row1 }\n' +
'{0}tr.color0 { background: %row2 }\n' +
'{1}#toppane ~ .c, .e-Filtered { opacity: {opacity} !important;}\n' +
'{1}.e-Filtered:hover { opacity: 1 !important; -webkit-transition: opacity .1s linear;' +
'-moz-transition: opacity .1s linear; -o-transition: opacity .1s linear; }');
document.head.appendChild(EHH.opaqueFilterCSS);
// Popup
EHH.generatePopup();
// Events
document.addEventListener('DOMNodeInserted',function(e) {
if (e.target.nodeName == 'TBODY')
EHH.walk(e.target);
},false); //TODO
if (EHH.gallery)
document.addEventListener('DOMNodeInserted',EHH.updateTagList,false);
if (!EHH.gallery && !EHH.thumbnails)
EHH.interceptMouseHover(); //TODO
// Data synchronization
EHH.link('keywords' , 'keywords' , EHH.updatePopup , EHH.clearRegexes , EHH.walk);
EHH.link('filters' , 'filters' , EHH.updatePopup , EHH.clearRegexes , EHH.walk);
EHH.link('defaultColor' , null , EHH.updatePopup , EHH.walk);
EHH.settings.link('defaultColor' , 'defaultColor');
EHH.settings.link('exColor' , 'exColor' );
EHH.settings.link('filterEnabled' , 'filterEnabled' , EHH.updatePopup , EHH.toggleOpacity , EHH.walk);
EHH.settings.link('highlighterEnabled' , 'highlighterEnabled' , EHH.updatePopup , EHH.walk);
EHH.settings.link('opacityEnabled' , 'opacityEnabled' , EHH.updatePopup , EHH.toggleOpacity);
EHH.settings.link('opacity' , 'opacity' , EHH.updatePopup , EHH.toggleOpacity);
EHH.settings.link('showTags' , 'showTags' , EHH.toggleTagDivs);
EHH.settings.link('highlightTags' , 'highlightTags' , EHH.highlightTags);
EHH.settings.link('reorderGalleries' , 'reorderGalleries' , EHH.walk);
EHH.settings.link('hideRatedGalleries' , 'hideRatedGalleries' , EHH.updateMenu, EHH.walk);
EHH.settings.link('showHideOption' , 'showHideOption' , EHH.updateMenu, EHH.walk);
EHH.settings.link('smartForegrounds' , 'smartForegrounds' , EHH.walk);
// Start
EHH.getGalleryTags();
EHH.toggleOpacity();
EHH.walk();
},
getGalleryTags: function()
{
var reqs = EHH.get_reqs(apimax);
reqs.forEach(function(elems) {
var ids = elems.map(function(e) {
var anchor = (e.getElementsByClassName('id3')[0]).firstElementChild;
var ref = anchor.href.split('/');
return [ref[4], ref[5]];
});
var gdata = { "method" : "gdata", "gidlist" : ids, "namespace" : 1 };
EHH.send_req(gdata, elems, apiurl);
EHH.numberOfRequestReceived=0;
EHH.numberOfRequestSent=reqs.length
});
},
get_reqs: function (maxlen) {
var classes=['id1','id1 e-Highlighted'];
var elems = classes.map(function(x) {
return Array.prototype.slice.call(document.getElementsByClassName(x));
});
var all = elems[0];
for (var i=1; i < elems.length; i++) all = all.concat(elems[i]);
var api_reqs = [];
for (var i=0; i<all.length; i+=maxlen) api_reqs.push(all.slice(i, i+maxlen));
return api_reqs;
},
send_req: function (gdata, elems, aurl) {
var req = new XMLHttpRequest();
req.onreadystatechange = (function() {
if (4 === req.readyState) {
if (200 !== req.status) {
console.error('cannot send request to ' + aurl);
}
else {
var apirsp = JSON.parse(req.responseText);
EHH.numberOfRequestReceived+=1;
elems.forEach(function(e,i,arr) {
EHH.metadatas.push(apirsp.gmetadata[i]);
});
if(EHH.numberOfRequestReceived==EHH.numberOfRequestSent){
EHH.metadatas.forEach(function(metadata) {
EHH.galleryTagsHashtable[metadata.gid]=metadata.tags;
});
EHH.walk();
}
}
}
});
req.open("POST", apiurl, true);
req.send(JSON.stringify(gdata));
},
augmentJS: function() {
/*Object.getOwnPropertyNames(Array.prototype).forEach(function(x) {
NodeList.prototype[x] = Array.prototype[x];
});*/
var linkedObjects = { };
Object.defineProperty(Object.prototype,'link', {
enumerable : false,
configurable : false,
writable : false,
value : function(localProperty,storedProperty,onChangeCallbacks) {
var currentValue = this[localProperty], args = arguments;
var get = function() { return currentValue; };
var set = function(value) {
currentValue = value;
if (storedProperty) Utils.save(storedProperty,currentValue);
for (var i=2;i<args.length;++i) {
if (args[i])
args[i](currentValue);
}
};
delete this[localProperty];
var descriptor = { get: get, set: set, enumerable: true, configurable: true };
Object.defineProperty(this,localProperty,descriptor);
linkedObjects[storedProperty] = { object: this, key: localProperty };
}
});
window.addEventListener('storage',function(e) {
if (!linkedObjects.hasOwnProperty(e.key)) return;
var target = linkedObjects[e.key];
target.object[target.key] = JSON.parse(e.newValue);
},false);
},
addMenuItems: function() {
var target = document.querySelector('#searchbox .nopm + .nopm, .nosel + div > form > div + div');
if (!target) return;
var label = document.createElement('label');
label.id = 'hideRatedLabel';
var input = document.createElement('input');
input.type = 'checkbox';
Utils.linkCheckbox(input,EHH.settings,'hideRatedGalleries');
label.appendChild(input);
label.appendChild(document.createTextNode('Hide rated galleries'));
label.setAttribute('title', 'Note that you must use a star color other than yellow in order for this feature to work.');
target.appendChild(document.createTextNode('\u00A0'));
target.appendChild(document.createTextNode('\u00A0'));
target.appendChild(label);
},
updateMenu: function() {
EHH.settings.doFilterRated = (EHH.settings.showHideOption && EHH.settings.hideRatedGalleries);
if (!document.getElementById('hideRatedLabel')) return;
if (!EHH.settings.showHideOption) className = '';
else if (!EHH.settings.hideRatedGalleries) className = 'visible';
else className = 'visible active';
document.querySelector('#hideRatedLabel input').checked = EHH.settings.hideRatedGalleries;
document.querySelector('#hideRatedLabel').className = className;
},
generatePopup: function() {
EHH.popup = document.createElement('div');
EHH.popup.id = 'e-HentaiPopup';
EHH.popup.className = 'ido';
EHH.popup.setAttribute('mode','default');
EHH.popup.innerHTML =
'<div id="e-Header">' +
'<b>E-H Highlighter</b>' +
'<a id="e-ToggleMode" target="settings">Show settings</a>' +
'</div><hr/>' +
'<div mode="default">' +
'<table align="right">' +
'<tr><td style="text-align:left">Keywords:</td><td><a id="e-HighlighterSwitch">Highlighter: enabled</a></tr>' +
'<tr><td colspan="2"><textarea></textarea></td></tr>' +
'<tr><td style="text-align:left">Filters:</td><td><a id="e-FilterSwitch">Filter: enabled</a></td></tr>' +
'<tr><td colspan="2"><textarea></textarea></td></tr>' +
'<tr><td colspan="2"><a id="e-PopupSave">Save changes</a><span><b>Filtered items:</b> <span id="e-FilteredItems"></span></span></td></tr>' +
'</table>' +
'</div>' +
'<div mode="settings">' +
'<label><input type="checkbox" id="opacitySwitch"> Enable opacity mode for filtered items</label>' +
'<input type="range" name="slider" min="0" max="100"> <span></span>' +
'<label><input type="checkbox" id="tagDivSwitch">Display any tags matching one or more highlight keywords in front of the gallery thumbnails</label>' +
'<label><input type="checkbox" id="highlightTagSwitch">Apply highlighting and filters to each gallery\'s tag list</label>' +
'<label><input type="checkbox" id="reorderGalleriesSwitch">Move highlighted galleries to the top and filtered galleries to the bottom (thumbnail mode only)</label>' +
'<label><input type="checkbox" id="showHideOption">Show "hide rated galleries" button on the search box</label>' +
'<label><input type="checkbox" id="smartForegrounds">Automatically pick the best foreground color (white or black) for highlighted galleries</label>' +
'<label id="e-PickerLabel"><input type="checkbox" style="visibility: hidden">Default highlight color: <input type="color" id="e-ColorPicker"> <div></div></label>' +
'<div id="e-Buttons">' +
'<div class="e-Button" id="e-Export">Export data</div>' +
'<div class="e-Button" id="e-Import">Import data</div><input type="file" accept="application/json">' +
'</div>' +
'</div>';
document.body.appendChild(EHH.popup);
// Popup elements
EHH.highlighterSwitch = document.getElementById('e-HighlighterSwitch');
EHH.filterSwitch = document.getElementById('e-FilterSwitch');
var textareas = Utils.query('#e-HentaiPopup textarea');
EHH.highlighterArea = textareas[0];
EHH.filterArea = textareas[1];
// Events (default view)
Utils.onClick(document.getElementById('e-ToggleMode'),function() {
EHH.popup.setAttribute('mode',this.getAttribute('target'));
var showSettings = this.getAttribute('target') == 'settings';
this.innerHTML = (showSettings ? 'Show keywords' : 'Show settings');
this.setAttribute('target',showSettings ? 'default' : 'settings');
});
[EHH.highlighterSwitch,EHH.filterSwitch].forEach(function(x) {
Utils.onClick(x,function() {
var target = /Highlighter/.test(this.textContent) ? 'highlighterEnabled' : 'filterEnabled';
var status = /enabled/.test(this.textContent);
EHH.settings[target] = !status;
});
});
Utils.onClick(document.getElementById('e-PopupSave'),function() {
var validate = function(regexes) { for (var i=0;i<regexes.length;++i) new RegExp(regexes[i]); };
var keywords = EHH.highlighterArea.value.split(/[\n]/).filter(function(x) { return x.length > 0; });
var filters = EHH.filterArea.value.split(/[\n]/).filter(function(x) { return x.length > 0; });
try {
validate(keywords);
validate(filters);
EHH.dontWalk = true;
EHH.keywords = keywords;
EHH.filters = filters;
EHH.dontWalk = false;
EHH.getGalleryTags(); //EHH.walk();
EHH.highlightTags();
} catch (e) {
alert('Couldn\'t parse keyword. ' + e.message + '\nSettings have NOT been saved.');
}
});
// Events (settings view)
Utils.linkCheckbox(document.getElementById('opacitySwitch'),EHH.settings,'opacityEnabled');
Utils.linkCheckbox(document.getElementById('tagDivSwitch'),EHH.settings,'showTags');
Utils.linkCheckbox(document.getElementById('highlightTagSwitch'),EHH.settings,'highlightTags');
Utils.linkCheckbox(document.getElementById('reorderGalleriesSwitch'),EHH.settings,'reorderGalleries');
Utils.linkCheckbox(document.getElementById('showHideOption'),EHH.settings,'showHideOption');
Utils.linkCheckbox(document.getElementById('smartForegrounds'),EHH.settings,'smartForegrounds');
// Opacity slider
EHH.slider = EHH.popup.querySelector('[name="slider"]');
if (EHH.slider.type != 'range') EHH.slider = null; // not supported
else {
EHH.slider.value = EHH.settings.opacity * 100;
EHH.slider.nextElementSibling.innerHTML = (Math.floor(EHH.settings.opacity * 10000) / 100) + '%';
EHH.slider.addEventListener('change',function(e) {
e.target.nextElementSibling.innerHTML = e.target.value + '%';
EHH.settings.opacity = parseInt(e.target.value,10) / 100;
},false);
}
// Color picker
var picker = document.getElementById('e-ColorPicker'),
preview = picker.nextElementSibling,
supported = picker.type == 'color';
picker.value = preview.style.backgroundColor = EHH.defaultColor;
if (supported) picker.style.cssText = 'padding: 0px; border: 0px; background: none; position: relative; top: 3px';
else picker.style.cssText = 'width: 60px; color: black';
preview.style.cssText = (supported ? 'display: none;' : 'background-color: ' + EHH.defaultColor);
var lastColor = preview.style.backgroundColor;
picker.addEventListener(supported ? 'change' : 'input',function() {
preview.style.backgroundColor = picker.value;
if (preview.style.backgroundColor == lastColor) return;
lastColor = preview.style.backgroundColor;
EHH.settings[EHH.onPanda ? 'exColor' : 'defaultColor'] = picker.value;
EHH.defaultColor = picker.value;
},false);
// Import-export functions
var importButton = document.getElementById('e-Import'), importInput = importButton.nextElementSibling;
Utils.onClick(importButton,function() { importInput.click(); });
importInput.addEventListener('change',function(e) {
var reader = new FileReader();
reader.onerror = function(e) { alert('Couldn\'t read the selected file.'); };
reader.onload = function(e) {
try {
var data = JSON.parse(this.result);
if (!data.keywords || !data.filters || !data.settings) throw null;
var confirmation = confirm('This will overwrite your data. Are you sure you want to proceed?');
if (confirmation) {
EHH.dontWalk = true;
EHH.keywords = data.keywords;
EHH.filters = data.filters;
for (var key in EHH.settings) EHH.settings[key] = data.settings[key];
setTimeout(function() { window.location.reload(); },50);
}
}
catch (_) { alert('Couldn\'t recognize the selected file.'); }
};
reader.readAsText(this.files[0]);
},false);
Utils.onClick(document.getElementById('e-Export'),function() {
var result = { keywords: EHH.keywords, filters: EHH.filters, settings: EHH.settings };
var blob = new Blob([JSON.stringify(result,null,2)],{ type: 'application/json' });
var a = document.createElement('a');
a.href = URL.createObjectURL(blob);
a.download = 'EHH.settings.' + (new Date().valueOf()) + '.json';
document.body.appendChild(a);
a.click();
document.body.removeChild(a);
});
EHH.updatePopup();
},
updatePopup: function() {
var updateSwitch = function(target,enable) {
target.textContent = target.textContent.replace(/[^\s]+$/,enable ? 'enabled' : 'disabled');
target.className = enable ? 'e-Disable' : 'e-Enable';
var filtered = document.getElementsByClassName('e-Filtered').length;
document.getElementById('e-FilteredItems').textContent = filtered;
};
EHH.highlighterArea.textContent = EHH.keywords.join('\n');
EHH.filterArea.textContent = EHH.filters.join('\n');
updateSwitch(EHH.highlighterSwitch,EHH.settings.highlighterEnabled);
updateSwitch(EHH.filterSwitch,EHH.settings.filterEnabled);
document.getElementById('opacitySwitch').checked = EHH.settings.opacityEnabled;
},
toggleOpacity: function() {
// changes the mutable style to enable or disable opacity
EHH.opaqueFilterCSS.innerHTML = EHH.opaqueFilterCSSMask
.replace(/\{0\}/g,EHH.settings.opacityEnabled ? '//' : '')
.replace(/\{1\}/g,EHH.settings.opacityEnabled ? '' : '//')
.replace(/\{opacity\}/,EHH.settings.opacity);
if (EHH.slider) EHH.slider.setAttribute('visible',EHH.settings.opacityEnabled);
},
toggleTagDivs: function() {
Utils.query('.e-Tags').forEach(function(x) {
x.style.display = EHH.settings.showTags ? null : 'none';
});
},
clearRegexes: function() {
EHH.parse.regexes = null;
},
prepareRegexes: function() {
/* Returns an object containing two properties:
* highlight : an array of keywords; each element is an object with a "type" property ("tag" or "title"),
* a "regex" property, a "color" property (null if no color is specified for that keyword)
* and optional "excludeTitle" and "excludeTags" properties. Keywords will be checked
* sequentially; the first matching keyword with a color specified will decide the item's
* color. If no color is found but the item still has to be highlighted, EHH.defaultColor
* will be used instead
* filters : an object with two properties (tag and title), each one a regular expression to
* be applied to the relevant target
*/
var splitFilter = function(x,target) {
if (x.length > 0 && x[0] == ':') target.tag.push(x.slice(1));
else if (x.length > 0) target.title.push(x);
};
var highlight = EHH.keywords.map(function(x) {
var type = (x[0] == ':' ? 'tag' : 'title');
if (type == 'tag') x = x.slice(1);
var tokens = x.match(/^([^!\/;]+)(![^\/;]+)?(;[^\/]+)?(\/\/?[^\/]+)?$/);
if (!tokens) {
console.error('Unable to parse highlighter "' + x + '"');
return null;
}
var include = tokens[1], excludeTitle = tokens[2], excludeTags = tokens[3], color = tokens[4];
return {
regex: new RegExp('\^'+include+'\$', 'gi'),
excludeTitle: (excludeTitle && excludeTitle.length > 1 ? new RegExp(excludeTitle.slice(1), 'gi') : null),
excludeTags: (excludeTags && excludeTags.length > 1 ? new RegExp(excludeTags.slice(1), 'gi') : null),
type: type,
color: (color ? color.slice(1) : null)
};
});
var filters = { title: [ ], tag: [ ] };
EHH.filters.forEach(function(x) {
if (x[0] == ':') filters.tag.push(x.slice(1));
else filters.title.push(x);
});
if (filters.title.length === 0) filters.title.push('EHH: no active title filter');
if (filters.tag.length === 0) filters.tag.push('EHH: no active tag filter');
filters.title = new RegExp('(' + filters.title.join('|') + ')','i');
filters.tag = new RegExp('(' + filters.tag.join('|') + ')','i');
return { highlight: highlight.filter(function(x) { return x !== null; }), filters: filters };
},
parse: function(title,tags_all,rated) {
/* title : a string, the title of the gallery item to be parsed
* tags_all : an array of all tags of the gallery
* rated : true if the gallery has been rated, false otherwise
* Uses the object built by EHH.prepareRegexes to decide the course of action for each gallery
* Returns an object with a "result" property indicating what has to be done
* Possible values are "highlighted", "filtered" or null for no action
* Filters take precedence over highlight keywords
* If the gallery item is to be highlighted, the result will also contain three additional properties:
* - titleKeywords : a list of title substrings that match one or more keywords (can be empty)
* - tagKeywords : a list of matching tags (to be passed to EHH.addTagDiv if EHH.settings.showTags is set, can be empty)
* - color : the color the gallery needs to be highlighted in (EHH.defaultColor if the user did not specify any color)
*/
if (!EHH.parse.regexes)
EHH.parse.regexes = EHH.prepareRegexes();
var regexes = EHH.parse.regexes;
if (EHH.settings.doFilterRated && rated)
return { result: 'filtered' };
if (EHH.settings.filterEnabled) {
var filtered = regexes.filters.title.test(title) || tags_all.some(function(x) {
return regexes.filters.tag.test(x);});
if (filtered) return { result: 'filtered' };
}
if (EHH.settings.highlighterEnabled) {
var titleKeywords = { }, tagKeywords = { }, color = null;
regexes.highlight.forEach(function(data) {
// apply title exclusion
if (data.excludeTitle !== null && title.match(data.excludeTitle)) return;
var excluded = false;
// apply tag highlights + tag exclusion
if (data.type == 'tag' || data.excludeTags !== null) {
tags_all.forEach(function(tag) {
if (excluded) return;
if (data.excludeTags !== null && tag.match(data.excludeTags)) {
excluded = true;
tagKeywords = { };
return;
}
if (data.type == 'tag' && !excluded) {
if (tagKeywords.hasOwnProperty(tag) || !tag.match(data.regex)) return;
tagKeywords[tag] = data.color;
if (!color) color = data.color;
}
});
}
// apply title highlights
if (data.type == 'title' && !excluded) {
var tokens = title.match(data.regex);
if (!tokens) return;
tokens = tokens.length == 1 ? tokens : tokens.slice(1);
for (var i=0;i<tokens.length;++i) titleKeywords[tokens[i]] = true;
if (!color) color = data.color;
}
});
titleKeywords = Object.keys(titleKeywords);
if (titleKeywords.length === 0 && Object.keys(tagKeywords).length === 0) return { result: null };
return { result: 'highlighted', titleKeywords: titleKeywords, tagKeywords: tagKeywords, color: color || EHH.defaultColor };
}
return { result: null };
},
computeTagColor: function(tag) {
// don't use style.backgroundPositionY
var y = parseInt(tag.style.cssText.split(/\s/).slice(-1)[0],10);
y = -(y+1) / 17;
return ['salmon','darkorange','gold','mediumaquamarine','skyblue','mediumorchid'][y];
},
// extracts both the title and a list of tags for a given target
// tags are parsed into objects with "tag" and "color" properties representing
// respectively the tag itself and the color of their associated tag flag
extractData: function(target) {
//galleryTagsHashtable
if (!target) return null;
var title = target.querySelector('.it5 > a, .id2 > a, [class^="t2"] > a') || target.querySelector('.itd a'),
tags = Utils.query(target,'.tft, .tfl');
if (!title && target.className.indexOf('t2') === 0) title = target.firstChild;
if (!title) return null;
if (tags.length > 0) {
tags = tags
.map(function(x) {
var color = EHH.computeTagColor(x);
return x.title.split(/, /).map(function(y) { return { tag: y, color: color }; });
})
.reduce(function(x,y) { return x.concat(y); });
}
var rated = !!target.querySelector('.irb, .irg, .irr');
var ref = title.href.split('/');
tags_all=EHH.galleryTagsHashtable[ref[4]];
return { title: title, tags: tags, rated: rated, tags_all: tags_all};
},
addTagDiv: function(target,tags) {
if (!tags || Object.keys(tags).length === 0) return;
var div = document.createElement('div');
div.className = 'e-Tags';
var html = '';
for (t in tags) {
var tag = t, color = tags[t]; //.replace(/^.+:/,'') TODO
html += '<div style="background-color: ' + color + '">' + tag + '</div>';
}
div.innerHTML = html;
if (!EHH.settings.showTags) div.style.display = 'none';
var temp = target.getElementsByClassName('id3')[0];
if (temp) temp.firstElementChild.appendChild(div);
else target.appendChild(div);
},
walk: function(root) {
/* walks the DOM to highlight and filter gallery items (or the taglist) */
if (EHH.gallery) {
EHH.highlightTags();
return;
}
if (EHH.dontWalk) return;
var removeTagDiv = function(target) {
Utils.query(target,'.e-Tags').forEach(function(x) { x.parentNode.removeChild(x); });
};
var editTitle = function(target,keywords) {
var temp = target.innerHTML;
keywords.forEach(function(keyword) {
var length = keyword.length, n = target.innerHTML.indexOf(keyword);
while (n != -1) {
temp = temp.slice(0,n) + new Array(length+1).join('\0') + temp.slice(n+length);
n = target.innerHTML.indexOf(keyword,n+1);
}
});
return temp.replace(/\0+/g,function(match,start) {
return '<b>' + target.innerHTML.slice(start,start+match.length) + '</b>';
});
};
// ----------
var flip = 1,
targets = Utils.query('[class^="gtr"], [class^="id1"], div[class^="t2"]'),
groups = (EHH.settings.reorderGalleries && EHH.thumbnails ? [ [ ], [ ], [ ] ] : null);
targets.forEach(function(target) {
var data = EHH.extractData(target);
if (data === null) return;
// reset element
target.className = target.className.replace(/\s?e-\w+/g,'');
target.style.cssText = target.style.cssText.replace(/(background-color|order|color):.+?;/g,'');
data.title.innerHTML = data.title.innerHTML = data.title.innerHTML.replace(/<\/?b>/g,'');
removeTagDiv(target);
var parsed = EHH.parse(data.title.textContent,data.tags_all,data.rated);
if (parsed.result == 'filtered') {
target.className += ' e-Filtered';
if (groups !== null) groups[2].push(target);
}
else if (parsed.result == 'highlighted') {
if (parsed.color[0] != '/') { // background color
if (parsed.color != 'transparent') {
target.className += ' e-Highlighted';
target.style.cssText += 'background-color: ' + parsed.color + ' !important;';
if (EHH.settings.smartForegrounds) {
var bestForeground = EHH.getBestForeground(parsed.color);
target.className += ' e-' + bestForeground;
}
} else {
target.className += ' e-Highlighted e-Transparent';
}
} else { // foreground color
target.className += ' e-Highlighted';
target.style.cssText += 'color: ' + parsed.color.slice(1) + ' !important;';
}
data.title.innerHTML = editTitle(data.title,parsed.titleKeywords);
if (EHH.thumbnails) EHH.addTagDiv(target,parsed.tagKeywords);
if (groups !== null) groups[0].push(target);
}
else if (groups !== null)
groups[1].push(target);
if (!/^gtr/.test(target.className)) return;
if (parsed.result == 'filtered' && !EHH.opaque) return;
flip = (flip+1)%2;
if (target.className.indexOf('color') == -1) target.className += ' color' + flip;
else target.className = target.className.replace(/color\d/,'color' + flip);
});
if (groups !== null) {
var order = 1;
Array.prototype.concat.apply([ ],groups).forEach(function(g) {
g.style.cssText += 'order: ' + (order++) + ';';
});
};
var filtered = document.getElementsByClassName('e-Filtered').length;
document.getElementById('e-FilteredItems').textContent = filtered;
},
highlightTags: function() {
Utils.query('[id^="ta_"]').forEach(function(x) {
if (!EHH.settings.highlightTags) x.style.cssText = '';
else {
var fullName = x.id.slice(3).replace(/_/g,' ');
if (!EHH.parse.regexes)
EHH.parse.regexes = EHH.prepareRegexes();
var regexes = EHH.parse.regexes;
if (EHH.settings.filterEnabled) {
if (regexes.filters.tag.test(fullName)) {
x.style.cssText = 'text-decoration: line-through';
}
}
if (EHH.settings.highlighterEnabled) {
regexes.highlight.forEach(function(data) {
if (data.type == 'tag' && fullName.match(data.regex))
{
x.style.cssText='background-color: ' + data.color +' !important';
}
});
}
}
});
},
updateTagList: function(e) {
if (e.target.nodeName != 'TABLE' || e.target.parentNode.id != 'taglist') return;
if (EHH.settings.highlightTags) EHH.highlightTags();
},
interceptMouseHover: function(e) {
if (typeof(MutationObserver) != 'function') return;
var observer = new MutationObserver(function(e) {
var thumbnail = e[0].target;
if (thumbnail.style.visibility == 'hidden')
Utils.query(thumbnail,'.e-Tags').forEach(function(x) { x.parentNode.removeChild(x); });
else if (EHH.settings.showTags) {
var row = document.evaluate('ancestor::tr[1]',thumbnail,null,9,null).singleNodeValue,
data = EHH.extractData(row);
if (data === null) return;
parsed = EHH.parse(data.title.textContent,data.tags);
if (parsed.result == 'highlighted') EHH.addTagDiv(thumbnail,parsed.tagKeywords);
}
});
Utils.query('.it2[id^="i"]').forEach(function(x) {
observer.observe(x,{ attributes: true });
});
},
getBestForeground: function(color) {
if (!EHH.colorCache) EHH.colorCache = { };
if (EHH.colorCache.hasOwnProperty(color)) return EHH.colorCache[color];
var parsedColor = null, div = null;
try {
div = document.createElement('div');
div.style.color = color;
document.body.appendChild(div);
parsedColor = window.getComputedStyle(div).color.match(/(\d+)/g);
parsedColor = [ parseInt(parsedColor[0], 10), parseInt(parsedColor[1], 10), parseInt(parsedColor[2], 10) ];
} catch (e) {
parsedColor = [ 255, 255, 255 ];
} finally {
if (div && div.parentNode)
div.parentNode.removeChild(div);
}
var whiteDistance = Math.sqrt(Math.pow(255 - parsedColor[0], 2) + Math.pow(255 - parsedColor[1], 2) + Math.pow(255 - parsedColor[2], 2));
var blackDistance = Math.sqrt(Math.pow(-parsedColor[0], 2) + Math.pow(-parsedColor[1], 2) + Math.pow(-parsedColor[2], 2));
var result = (whiteDistance > blackDistance ? 'white' : 'black');
EHH.colorCache[color] = result;
return result;
}
};
var Utils = {
// moves localStorage-based settings to GM_[gs]etValue when possible
migrateSettings: function() {
if (typeof(GM_getValue) == 'undefined' || typeof(GM_setValue) == 'undefined') return;
if (Utils.load('migrationDone2', false)) return;
try {
for (var key in EHH.settings) {
if (localStorage.getItem(key) === null) continue;
EHH.settings[key] = JSON.parse(localStorage.getItem(key));
Utils.save(key, EHH.settings[key]);
}
['keywords', 'filters'].forEach(function(key) {
if (localStorage.getItem(key) === null) return;
EHH[key] = JSON.parse(localStorage.getItem(key));
Utils.save(key,EHH[key]);
});
Utils.save('migrationDone2', true);
} catch (e) { }
},
save: function(key,value) {
if (typeof(GM_setValue) != 'undefined') GM_setValue(key, JSON.stringify(value));
else localStorage.setItem(key, JSON.stringify(value));
},
load: function(key,def) {
var result = null;
if (typeof(GM_getValue) != 'undefined') result = GM_getValue(key, null);
else result = (localStorage.getItem(key) || null);
return (result === null ? def : JSON.parse(result));
},
onClick: function(element,f) {
element.addEventListener('click',function(e) {
if (e.which != 1) return;
if (f) f.call(this);
},false);
},
linkCheckbox: function(checkbox,object,property) {
if (!object) return;
if (object.hasOwnProperty(property)) checkbox.checked = object[property];
Utils.onClick(checkbox,function() { object[property] = checkbox.checked; });
},
query: function(root,selector) {
if (!selector)
return Array.prototype.slice.call(document.querySelectorAll(root),0);
else
return Array.prototype.slice.call(root.querySelectorAll(selector),0);
}
};
EHH.init();
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